Part# H-9170-BQ
MFR Model# 21-H9170-3


The final color coat applied over fabric in the Ceconite/Randolph system. Available in 50 standard colors. Thin one to one with 9703 Butyrate thinner. One tinned gallon covers approximately 200 sq. ft with one coat.

Note:These samples are an approximate computer representation of the actual color and are to be used for reference only.

High Resolution Color Reference Chart
California Prop 65 Warning Symbol

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.


Reference Chart


This product is the best choice for modelers needing a cost effective alternative to expensive modeling finishes. I used white as a base for yellow dope on a vintage silkspan covering.

Brian S
April 30, 2021

Using this butyrate color over white on vintage Stearman model. Much more cost effective than typical hobby products

Brian S
April 21, 2021

This product works well for modeling using Randolph thinners, spraying.

Brian S
April 20, 2021

Great color match! - always liked Randolph paints. Expect to order more!

Grant C
April 16, 2021

Great coverage, great paint, great customer service. Cant get any better than this. Keep up the good work!

Frank C
April 12, 2021

Great coverage and adhesion. Thinned with Randolph it sprays evenly and dries fast.

March 24, 2021

Product works as advertised.

January 27, 2021

Excellent service by Aircraft Spruce!!!

October 7, 2020

Back ordered originally, shipped, and recd. Might help to know in the future when back ordered matls could be expected but otherwise service was fine.

September 24, 2020

Item came from Atlanta all the way to San Diego and it was on schedule all the way. Perfect pairing

Fritz M
August 17, 2020


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: I am using Randolph colored butyrate on the fabric of my Stinson(Rand x-5680) Boston maroon...What can I use on aluminum for same color?

Either Ranthane or Mark II.

Q: May I please have the SDS for this product?

We have added the MSDS to this web page for download and review.

Q: Can I apply your butyrate colored dope over Sig butyrate clear dope on a model plane?

Per manufacturer: Yes.

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